421244200 has 48 divisors (see below), whose sum is σ = 1054737180. Its totient is φ = 155535360.

The previous prime is 421244191. The next prime is 421244203. The reversal of 421244200 is 2442124.

It can be written as a sum of positive squares in 6 ways, for example, as 35593156 + 385651044 = 5966^2 + 19638^2 .

It is not an unprimeable number, because it can be changed into a prime (421244203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78409 + ... + 83608.

Almost surely, 2^421244200 is an apocalyptic number.

421244200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421244200 is an abundant number, since it is smaller than the sum of its proper divisors (633492980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421244200 is a wasteful number, since it uses less digits than its factorization.

421244200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162046 (or 162037 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 421244200 is about 20524.2344558817. The cubic root of 421244200 is about 749.6260061284.

Adding to 421244200 its reverse (2442124), we get a palindrome (423686324).

The spelling of 421244200 in words is "four hundred twenty-one million, two hundred forty-four thousand, two hundred".